NDT.net - July 2002, Vol. 7 No.07

Diffusible Weld Hydrogen - Measurement by Fiber Optic Sensors

R. D. Smith II et. al. , DCH Technology in Valencia, California USA.

Summary

Background

Experimental

Results and Discussion

Fig 7: Experimental hydrogen response curves for prototype diffusible hydrogen sensor (gas metal arc welded HSLA 100 steel) Fig 8: Comparison of experimental and theoretical data for fiber optic diffusible hydrogen sensor (gas metal arc welded HSLA 100 steel, Deff - 7.5 x 105 cm2/sec, r - 0.970) Fig 9: Comparison of experimental and theoretical data for fiber optic diffusible hydrogen sensor (gas metal arc welded HSLA 100 steel, Deff - 7.5 x 105 cm2/sec, r - 0.989)

Conclusions

Acknowledgement

References

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